Discharger for pyrotechnic cartridges



Aug. 17, 1943.

J. L. LOCHHEAD ET AL DISCHARGER FOR PYROTECHNIC CARTRIDGES Filed Nov. 27, 1940 INVENTORS Juh'n. Luchheni Miles [-Eannaw RNEY5 Pateniced a v,

f' Fig. 3 is a view partly inele iation and partly'f Anglia a miscarriage-15o The=inventi6n vdescribed herein may'be 'rnanufactured andvu sedby orfor thelGovernrnentffor-iv governmental purposes, withcutthe payrnentto:

us ofany royalty thereon- V n This invention relates to a discharger for pyr technic cartridges and tl' 'elikef The purpose of the invention is to provide a i simple'and inexpensive" discharg'er inwhi chl'ia a firing pin is cocked andlreleased by'retraction .well

of asleeve on'a barrelfr i The'specific nature of the inyen tion;

asother objects I andjfiadvantag'e's thereo fjfwill clearly appear from adescription.of 'apreierred Y embodirhentas shown} the jacmmpanying drawing in which:

Fig. '1 is a viewpartly {in side jeleyationi andg partly in section of a disch'a'rger with the fffiring pinin=normal fired position;

'Fi 271$ a ise in section of the searp Y Fig, 4 is'a plan View of the searspring' f f Fig. 5 is a view inside elevation of the-firing .r

V 7 'Referring to thedrawing by characters I of reference there is shown a barrel 5 haying its breech portion internally threaded for, receiving a breech'plug 6. The-breech plug is .formed with an axil chamber 1 for slidably housing a firing "pin 8 whose frontendenters a tapered aperture is partially disposed in a recess H inthe firing ctional View on he in' I the shoulder 25 for-receivingthe extremity oflthe finger when it is moved inwardly out of'enga e mer t with'the actuatingrpin; 3

pin and is confined by a plug I2 threaded into q the breech plug and closing 'therchamber. The firing .pin ispformed with a front collar l3 and a rear collar ,ild for slidably engaging the wall of thefchamber l; A longitu dinal'slot "I5 is formed in the outerwall of the firing pin and extends through the collars while" midway between the collars there are provided'opposite branch slots'lfii6. An arcuate leaf spring-l1 is insertable in the slot I5 and'includes opposed arms are disposed in the slot liin the collars." The leaf spring l'l. isvconfined by the sear and. normally tends tomove the'sear in a radial direction away from the firing pin and into engagement with the wall ofthe chamber 1 as clearlyshown j @AKTBIP e, iiochliea'd and M iles-"C." Beater; p in eld, Noyen berfi'lglilkiqQSerialN '36; '09 v 7 Claims, (or-s9 1 (Gran ed iinder thei jac ft ofiiMarch a; aissaiai amended Aprilflw, 11928;;370;O.=,G,;;757),

"projects into the aperture 'ZZ-Ein the breech'plu'g. 'Theinner-en'd'oi -the pin engage's the front of. theffinger whereby retraction off the' eye prodiicesf retraction: of; the firing p against pin the} bent finger zpsu ngs the beveledh w rnoved for dissemb li l the jd ischarger, for i adjusted inwardlymr outwardly toregulatethe point o'f'dis'engagement of iih gerfli-l with th' pin remains in the forward firedoposition. jrhe: pi '24 whic'his now at the lowerend of tliegaperture; r 22 is moved forwardly to reengage the frontfedge *1 j reduced extremities disposed inlthe :slo't ihthe r .the' aperture 'inthe breech plug, agsle' 5 ablelon the barrel, and 'an actuating pin inilfig 'jzL-f Abnt nciiiidiiiiger 2 a o a y of the "material of V the sear projects out ardly Asleeye'23 slildabl a algam-t emarina breech 'plugl threaddly' carries a fpinf24 which the act i'on fofiIthef'spring l0; V g 4 portion iof 'thefrearward moyeinent of {the firin der' 2 5j at {thief-lower inner "edge or the apertur 22 and isca nrned -inwardly out of f'engag'emen m s 'd iv wardly punderf-the" influence bis-the 'ener' "zed spring to fire'a cartridge inthe barrel; ""Actuating *pir'r 24; is provided z'with V threadslfas shown; so that the pmqmaytha when the piece isfir'ed. I n

The inner wall or thezich'a'mber' 'l isfo ni'ed; witha longitudinally extending groove 26 below Arfter a cartridge has-been] of -vthe finger, the finger'and sear yielding;'inwar;dly" to .per1 n' passa ev-of the pinl; The p'artsqar now inthe position shown in.Fig..1. y We claimi" 1. In a discharger, a barrel; rabr'eech .plugfin' the barre l'having' an; axial chamber and an aper tureFinitsside' wallqcommunicating with" chamber,"-a firing pin slidably mounted inl the' chamber of the breech plugj and having a front and a'rear 'collarythe outer wall of" the firing pin formed with a longitudinal slotjextending through. the collars andfwi'th oppositejbranch slots midway of the longitudinal slotga firing] pin spring, anarcuateleafgspring,haviiig pppo-f site arms-disposed'in the opposite branch'slots, V 1 n a sear disposed between the-collars andhavi collarsfa'bent finger on the sear projecting into" i 1 aperture.

adischarger, a barrel having a closed breech with a side aperture, a firing pin movableaxially. in the breech, a firing pin spring, a sear carried in theside of the firing pin and mounted for movementradially thereof, a spring normally said recess adapted to restrain-the sear against movement along the axis of the 'pin and permitting radial movement therein against the re urging the isearto annouter position, aninclined finger on: the searpr'oiecting into'th'esideiaperture of the breech,

a sleeve slidable on the barrel, and anadjustableactuating pin carried by the sleeve and engageable with 'the bent,

finger :to move it; against the lo wer wall' of the ,l

side aperture in thefbreech I 7 i 3. In 'a;discharger, a barrel having a closed breechwith a side aperture,a firing pin mov fl able axially in the breech, a firing pin spring, a

firing-position;

radially movable sear carried inrthe outer side" of the firing pin and inwardly movable en gagement' with the lower wall ofthe side aperture, a sleeve on the barrel, and; anfadjustablej actuating member on the sleeve projecting into" 7 the side aperture for retracting the; searinto engagement with the f lower wall of thejsid-e 4. In a discharger, a barrel, a breech plug-inv the barrelhaving'an axial'charnber andan aperture in its side wall corn'munica ting with the chamber, a ,firing'pin slic'lably mounted .inft he V chamber of the breech plug andhaving a front i and rear collar, the enter wall of; the firing pin formed with: a longitudinal slot extending throughlithe collars, a firing pin spring, resilient means disposed in the slot, a: sear contacting, 7 said means, disposed "between ,the collar-'5' and havingreduced extremities disposed in the slot inthe collars, a bent finger on the ,searprojeetingintothe aperture inthe sbreech'.pl:ug, a sleeve slidable ornthe barrel, and an actuating; .pin car 'ried by the sleeve and engageable-withthe bent finger. V 5. Ina discharger a barrel, a 'breech plugin the barrel, having an 'axialfchainber and an aperture 'itsjside wall communicating with the chamber, a fl-ring pin slida bly mounted inthe chamber and'fhaving a recess-on theeerterior thereof, a spring seated win-the ,recess,;a sear ;the -aperture n the breech plug, means slidable l on the barrel-,- and an adjustable actuating pin carried by said means andl-engag'eable Withthe element's carried by said sleeve andengageable i sistance of the spring, a firing pin spring, an

inclined'proje'ction on the sear'extendinginto the aperture :in: the breech, a sleeve" slidable on the :barreLfan adjustable actuating :Amember carried by the sleeve and engageable-with the in- 1 c lined projection, said sleeve and member arranged to depress the sear and firing'pin against thegresistance of the firing pin spring, said inclined projection arranged to engage the lower wall oi the" side aperture .of the breech at the' end-ofgthe traverse of the sear whereby the sear and firing pin' are released and thrust to the 6.- In a'disch argena barrel, a breech plug in the barrel havingan' axial chamber and an aperture in its'side wall communicating with the chamber, a firing pin slidably mounted in the chamber of, the breech plug, a firing ,pin spring, a sear confined-in the outer wall or the pin and arrangedfor conjoint axial movement therewith,

resilient means seatedin the outer want: the pin,jsaid-; sear also' having :radial movementin the pinagainst the resistancepf the r esilient 'means, 'a bent fi ngeron thlsear' prgjecting into 1 37.- In a discharger;

axially 'in the breech, a firirig pin spring, a sleeve "onth e, barrel, a sear e lementand a coniplementary s ear engaging element one of said elements carried by said firing'pin and, the other of said through said aperture, -and;a*:sear disengaging cam on the Wallof saicl side aperture, said sear engaging elementbeing adjustable with respect to said sear element te i'eg ul'ate their point o-i diseng gementandgpositionedior adjustment Y exteriorly of the discharger.

confined in the recessin contact withthez-spri'ng,

JOHN-L, LOCHHEAD -MILES c. 1 BENNER.

v V 'abarrel having aclosed. breech with a side aperture, .a firing pin movable 

